311 lines
8.5 KiB
C
311 lines
8.5 KiB
C
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#include "precomp.h"
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#pragma hdrstop
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/* File - SYSINICM.C */
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extern HWND hwndFrame;
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void APIENTRY ConstructSysIniLine(SZ, SZ, SZ);
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SZ APIENTRY SzNextConfigLine(SZ);
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SZ APIENTRY SzSysIniEdit(SZ, SZ, SZ, SZ);
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BOOL APIENTRY FCreateSysIniKeyValue(SZ, SZ, SZ, SZ, CMO);
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SZ APIENTRY SzCopyBuf(SZ, SZ, int);
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int APIENTRY Linelenl(SZ);
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#define ISWHITE(c) ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) == '\r')
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#define UP_CASE(c) (CHP)(LOBYTE(LOWORD((DWORD)(AnsiUpper((LPSTR)MAKELONG((WORD)(c),0))))))
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#define MAX_INF_LINE_LEN (150)
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#define ISEOL(c) ((c) == '\n' || (c) == '\r')
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#define _CR 0x0D
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#define LF 0x0A
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/* void ConstructSysIniLine(char*, char*, char*);
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*
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* ENTRY: szSysIniLine, Address of a buffer large enough to hold the
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* constructed system.ini line.
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* ProfString, The profile string to be used in constructing
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* the system.ini line.
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* NameString, The name of the driver, exe, or any string to
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* be placed after the profile string in the new
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* system.ini line.
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*
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* EXIT : No exit value, newly constructed system.ini line will reside
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* in buffer pointed to by szSysIniLine.
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*
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***********************************************************************/
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void APIENTRY ConstructSysIniLine(szSysIniLine, szProfString, szNameString)
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SZ szSysIniLine;
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SZ szProfString;
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SZ szNameString;
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{
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strcpy(szSysIniLine, szProfString);
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SzStrCat(szSysIniLine, "=");
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if (*(szNameString + 1) == ':')
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SzStrCat(szSysIniLine, (szNameString + 2));
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else
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SzStrCat(szSysIniLine, szNameString);
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}
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/* LPSTR fnNextConfigLine(LPSTR lpFileOffset);
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*
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* Advances Far pointer into config.sys files to the first non-white char
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* of the next line in the buffer containing the file. Will return null
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* in the EOF case.
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*
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* ENTRY: Far pointer into buffer holding file.
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*
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* EXIT: Far pointer into buffer holding file. NULL on EOF.
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*
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***********************************************************************/
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SZ APIENTRY SzNextConfigLine(szFileOffset)
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SZ szFileOffset;
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{
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while (!ISEOL(*szFileOffset))
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szFileOffset = SzNextChar(szFileOffset);
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while (ISWHITE(*szFileOffset) && *szFileOffset != 0)
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szFileOffset = SzNextChar(szFileOffset);
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return(szFileOffset);
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}
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/* BOOL fnSysIniEdit(PSTR szSection,PSTR szSysIniLine);
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*
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* This function will either add or remove an entire line from the
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* system.ini file.
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*
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* ENTRY: szSection, section string, [boot], [system], or [win386]
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* specifies section from which line will be added to. Ignored
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* when removing an entry.
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*
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* szSysIniLine, buffer containing line to be added to system.ini
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* file. In the case of RETURN, this buffer will return the line
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* from system.ini
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*
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* EXIT: Returns bool value as to success or failure of function.
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*
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***********************************************************************/
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SZ APIENTRY SzSysIniEdit(szFile, szSection, szSysIniLine, szIniBuf)
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SZ szFile;
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SZ szSection;
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SZ szSysIniLine;
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SZ szIniBuf;
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{
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BOOL fResult;
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SZ szFileOffset;
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SZ szTo;
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SZ szNewHead;
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szFileOffset = szIniBuf;
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while (ISWHITE(*szFileOffset) && *szFileOffset != '\0')
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szFileOffset = SzNextChar(szFileOffset);
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if (*szFileOffset == '\0')
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/* REVIEW should create it */
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{
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EvalAssert(EercErrorHandler(hwndFrame, grcMissingSysIniSectionErr,
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fTrue, szSection, szFile, 0) == eercAbort);
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return(NULL);
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}
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while ((szTo = (SZ)SAlloc(strlen(szIniBuf) + strlen(szSysIniLine)
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+ 3)) == (SZ)NULL)
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if (!FHandleOOM(hwndFrame))
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return(NULL);
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szNewHead = szTo;
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fResult = fFalse;
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while (*szFileOffset != 0 && fResult == fFalse)
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{
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if (!strncmp(szSection, SzNextChar(szFileOffset),strlen(szSection)))
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{
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szTo = SzCopyBuf(szFileOffset, szTo, Linelenl(szFileOffset));
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szTo = SzCopyBuf(szSysIniLine, szTo, strlen(szSysIniLine));
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szFileOffset = SzNextConfigLine(szFileOffset);
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*szTo = _CR;
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szTo = SzNextChar(szTo);
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*szTo = LF;
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szTo = SzNextChar(szTo);
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SzCopyBuf(szFileOffset, szTo, 0Xffff);
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SFree(szIniBuf);
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szIniBuf = szNewHead;
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fResult = fTrue;
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continue;
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}
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szTo = SzCopyBuf(szFileOffset, szTo, Linelenl(szFileOffset));
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szFileOffset = SzNextConfigLine(szFileOffset);
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}
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if (fResult)
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return(szIniBuf);
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else
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{
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/* REVIEW should create it */
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EvalAssert(EercErrorHandler(hwndFrame, grcMissingSysIniSectionErr,
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fTrue, szSection, szFile, 0) == eercAbort);
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return(NULL);
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}
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}
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/*
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** Purpose:
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** Arguments:
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** szFile: a zero terminated string containing the file name for the
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** ini file.
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** szSect: a zero terminated string containing the name of the section
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** in which the key/value pair will be created.
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** szKey: the name of the key to be created in the section szSect.
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** szValue: the name of the value to be created in conjunction with the
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** key szKey in the section szSect.
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** cmo: valid command options:
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** cmoNone: no effect
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** cmoOverwrite: causes the key/value pair to be removed if it
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** already exists before creating the key.
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** cmoVital: causes the Vital command handler to be called
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** if the function fails for any reason.
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** Returns:
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** fTrue if the function succeeds, fFalse otherwise.
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**
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****************************************************************************/
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BOOL APIENTRY FCreateSysIniKeyValue(SZ szFile,
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SZ szSect,
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SZ szKey,
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SZ szValue,
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CMO cmo)
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{
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struct _stat FileStatus;
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CHL szSysIniLine[MAX_INF_LINE_LEN];
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PFH pfh;
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SZ szIniBuf;
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BOOL fVital = cmo & cmoVital;
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EERC eerc;
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while ((pfh = PfhOpenFile(szFile, ofmRead)) == (PFH)NULL)
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if ((eerc = EercErrorHandler(hwndFrame, grcOpenFileErr, fVital, szFile,
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0, 0)) != eercAbort)
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return(eerc == eercIgnore);
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while (_fstat(pfh->iDosfh, &FileStatus))
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if ((eerc = EercErrorHandler(hwndFrame, grcReadFileErr, fVital, szFile,
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0, 0)) != eercAbort)
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{
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EvalAssert(FCloseFile(pfh));
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return(eerc == eercIgnore);
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}
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while ((szIniBuf = (SZ)SAlloc((CB)FileStatus.st_size + 1)) == (SZ)NULL)
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if (!FHandleOOM(hwndFrame))
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{
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EvalAssert(FCloseFile(pfh));
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return(!fVital);
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}
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Assert((CB)(FileStatus.st_size) < (CB)(-1));
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if ((CB)(FileStatus.st_size) != CbReadFile(pfh, szIniBuf,
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(CB)(FileStatus.st_size)))
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{
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EvalAssert(EercErrorHandler(hwndFrame, grcReadFileErr, fVital, szFile,
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0, 0) == eercAbort);
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SFree(szIniBuf);
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EvalAssert(FCloseFile(pfh));
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return(!fVital);
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}
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*(szIniBuf + FileStatus.st_size) = '\0';
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EvalAssert(FCloseFile(pfh));
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ConstructSysIniLine((SZ)szSysIniLine, szKey, szValue);
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if ((szIniBuf = SzSysIniEdit(szFile, szSect, szSysIniLine, szIniBuf)) ==
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(SZ)NULL)
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{
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SFree(szIniBuf);
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return(!fVital);
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}
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while (!(pfh = PfhOpenFile(szFile, ofmCreate)))
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if ((eerc = EercErrorHandler(hwndFrame, grcOpenFileErr, fVital, szFile,
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0, 0)) != eercAbort)
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{
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SFree(szIniBuf);
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return(eerc == eercIgnore);
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}
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if (strlen(szIniBuf) != CbWriteFile(pfh, szIniBuf,
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strlen(szIniBuf)))
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{
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EvalAssert(FCloseFile(pfh));
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SFree(szIniBuf);
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EvalAssert(EercErrorHandler(hwndFrame, grcWriteFileErr, fVital, szFile,
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0, 0) == eercAbort);
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return(!fVital);
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}
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EvalAssert(FCloseFile(pfh));
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SFree(szIniBuf);
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return(fTrue);
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}
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/* LPSTR NEAR PASCAL fnCopyBuff(LPSTR pFrom, LPSTR pTo);
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*
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* Function moves the remaining contents of a text buffer from one location
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* within the buffer to a new location within the buffer. This is used to
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* either remove or make room for an entry in the file buffer.
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*
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* ENTRY: pointers To and From designate where the remaining protion of the
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* buffer will be moved to. The new buffer will be NULL terminated.
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*
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* EXIT: Returns pointer to next available char position in the buffer.
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*
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***********************************************************************/
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SZ APIENTRY SzCopyBuf(szFrom,szTo,iCnt)
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SZ szFrom;
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SZ szTo;
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int iCnt;
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{
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/* REVIEW won't work for DBCS */
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while (*szFrom != 0 && iCnt-- != 0)
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{
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*szTo = *szFrom;
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szTo = SzNextChar(szTo);
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szFrom = SzNextChar(szFrom);
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}
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if (*szFrom == '\0')
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*szTo = '\0';
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return(szTo);
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}
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/* int fnLinelenl(LPSTR)
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*
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* Returns length of buffer line up to and including the LF char.
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* (far pointer version).
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*
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* ENTRY: LPSTR to buffer
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* EXIT: length of line.
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*
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***********************************************************************/
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int APIENTRY Linelenl(szBuf)
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SZ szBuf;
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{
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unsigned i = 1;
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while (*szBuf != LF)
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{
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szBuf = SzNextChar(szBuf);
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i++;
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}
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return(i);
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}
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